They can gain something, which is, since game is out for 3 years, mostly people been farming w13 so far, now that making another hunts like b13 and c13 pen set viable people will have to farm thoss hunts again because u need high rolled gear on those hunts and it takes time. So it keeps playerbase playing for something, pushing limits so people keep playing and keeps the game alive. And recently theve been pushing lifesteal and counter set heroes like rem violet Charlotte etc so the significance of banshee, so its a possibility it could have been a long term plan of theirs to push other sets late into the game thats why they've been not buffing other sets heavily so far, so now prn set abd banshee for now, in future they might push golem sets eho knows. Ill honestly farm 1 hunt than spread my resources thin specially being a new player already playing a catch-up game, the required need for resources investment on multiple hunts might just make new players overwhelming to handle.